The world is still talking about The Undertaker's incredible return to form in that bonkers Boneyard Match against AJ Styles at WrestleMania 36. A return to form in many ways, it also witnessed the revival of his old American Badass gimmick as he tore into that cemetery on a motorcycle like it was 2001 all over again. And he rounded out this resurrection with a brand new Metallica entrance theme.

Over the years, The Deadman has had an array of unforgettable theme songs score his way to the ring and, if we're being completely honest, the music is one of the major reasons as to why he became such a larger-than-life character to before he even stepped in the ring.

Could you imagine if he didn't first walk out to Jim Johnston's take on that instantly recognisable funeral dirge at Survivor Series? Maybe we wouldn't have the signature slow entrance that quickly became such a significant part of his character. And what if he hadn't torn into that arena at Judgment Day 2000 to Kid Rock's 'American Badass'? Would he have even been called the American Badass?

Adding a new entrance theme this late in the game reminds us of just how timeless The Undertaker is. It also gives us a chance to reflect on his iconic collection of themes and, while we're at it, rank them.